body {
    text-align: center;
}
[class *= level] {
    display: flex;
    flex: 1;
    padding: 10px 0px;
    margin: 5px;
    border: 2px solid #5b4563;
    font-size: .75rem;
    line-height: 20px;
    background-color: white;
}
.flex-4 {
    flex: 4;
}
.flex-2 {
    flex: 2;
}
.flex-3 {
    flex: 3;
}
.flex-5 {
    flex: 5;
}
.flex-6 {
    flex: 6;
}
button {
    display: inline-block;
    margin: 20px;
    width: 100px;
    line-height: 20px;
    background-color: white;
    border: 2px solid #5b4563;
    border-radius: 5px;
    font-size: .75rem;
}
button:hover {
    background-color: #5b4563;
    color: white;
    cursor: pointer;
}
input {
    display: inline-block;
    width: 100px;
    padding: 5px;
    border: 2px solid #5b4563;
    border-radius: 5px;
    outline: none;
}
span {
    display: inline-block;
    width: 200px;
    line-height: 20px;
    padding: 5px;
    color: #5b4563;
    border: 2px solid #5b4563;
}